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1 MHz, 273 W掺镱棒状光纤啁啾脉冲放大系统

王栋梁 史卓 王井上 吴洪悦 张晓辉 常国庆

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1 MHz, 273 W掺镱棒状光纤啁啾脉冲放大系统

王栋梁, 史卓, 王井上, 吴洪悦, 张晓辉, 常国庆

1 MHz, 273 W average power Ytterbium-doped rod-type fiber chirped pulse amplification system

Wang Dong-Liang, Shi Zhuo, Wang Jing-Shang, Wu Hong-Yue, Zhang Xiao-Hui, Chang Guo-Qing
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  • 掺镱超快光纤激光器因光束质量好、输出功率高而被广泛应用于科学研究、工业加工、医疗诊断等领域. 大模场面积的棒状光纤可以提供平均功率在百瓦量级的高能量飞秒脉冲输出, 本文基于掺镱棒状光纤搭建了啁啾脉冲放大系统, 详细研究脉冲输入功率对脉冲放大及压缩的影响. 实验结果表明, 在低放大功率下(< 160 W)增大输入功率可提升放大效率且脉冲压缩质量基本不受影响; 当放大功率进一步增大时, 需选择合适的输入功率避免积累过量非线性相位. 该啁啾脉冲放大系统可将20 W圆偏光输入放大至305 W, 压缩后产生平均功率为273 W、能量为273 μJ的264 fs脉冲, 脉冲平均功率和峰值功率比Pedersen课题组(Pedersen M E, Johansen M M, Olesen A S, Michieletto M, Gaponenko M, Maack M D 2022 Opt. Lett. 47 5172)结果约提升了一倍.
    Ytterbium-doped ultrafast fiber lasers are widely used in scientific research, industrial processing, medical diagnosis, and other fields due to their excellent beam quality and high power output. The larger mode area allows the fiber to transmit higher peak-pulse power. The commercial rod-type Ytterbium-doped fiber with a core diameter of 85 μm, produced by NKT in Denmark, can produce ultra-short pulses on the order of 100 watts and 100 microjoules. Based on this rod-type fiber, we construct a chirped-pulse amplification (CPA) system in which the high-efficiency transmission gratings and temperature-tunable chirped fiber Bragg grating (CFBG) are used to compensate for dispersion. We investigate the effect of power input on the amplified power and pulse compression quality, and find that higher power input slows down the gain saturation and improves amplification efficiency. At power inputs of 20 W and 30 W, we obtain power outputs of 305 W and 323 W respectively, with an amplification efficiency of about 80%. To reduce the accumulation of nonlinear phase shift, we use circular polarization amplification. At low power outputs (less than 160 W), the effect of nonlinear phase accumulation on the compressed pulse is negligible, and the increase in power input increases the amplification efficiency. When the power output exceeds 200 W, the cumulative increase of nonlinear phase shift reduces the pulse compression quality, which implies that the input power is appropriately reduced to the power range between 5 W and 20 W. With a power input of 20 W and pump power of 429 W, the power output can reach 305 W. After pulse is compressed by using a diffraction-grating pair, this rod-type fiber CPA system can deliver 1 MHz, 264 fs pulses with 273 W in average power. These results provide an important experimental basis for optimizing the performance of high-power and high-energy ultrafast fiber lasers.
      通信作者: 张晓辉, 202011004153@mail.scut.edu.cn ; 常国庆, guoqing.chang@iphy.ac.cn
    • 基金项目: 国家重点研发计划(批准号: 2021YFB3602602)和国家自然科学基金(批准号: 62175255, 62227822)资助的课题.
      Corresponding author: Zhang Xiao-Hui, 202011004153@mail.scut.edu.cn ; Chang Guo-Qing, guoqing.chang@iphy.ac.cn
    • Funds: Project supported by the National Key Research and Development Program of China (Grant No. 2021YFB3602602) and the National Natural Science Foundation of China (Grant Nos. 62175255, 62227822).
    [1]

    Jackson S D 2012 Nat. Photonics 6 423Google Scholar

    [2]

    Chang G, Wei Z 2020 iScience 23 101101Google Scholar

    [3]

    Strickland D, Mourou G 1985 Opt. Commun. 55 447Google Scholar

    [4]

    Richardson D J, Nilsson J, Clarkson W A 2010 JOSA B 27 B63Google Scholar

    [5]

    Zervas M N 2014 Int. J. Mod. Phys. B 28 1442009Google Scholar

    [6]

    Limpert J, Stutzki F, Jansen F, Otto H J, Eidam T, Jauregui C, Tünnermann A 2012 Light: Sci. Appl. 1 e8Google Scholar

    [7]

    Stutzki F, Jansen F, Otto H J, Jauregui C, Limpert J, Tünnermann A 2014 Optica 1 233Google Scholar

    [8]

    Eidam T, Rothhardt J, Stutzki F, Jansen F, Hädrich S, Carstens H, Jauregui C, Limpert J, Tünnermann A 2011 Opt. Express 19 255Google Scholar

    [9]

    Stutzki F, Jansen F, Liem A, Jauregui C, Limpert J, Tünnermann A 2012 Opt. Lett. 37 1073Google Scholar

    [10]

    Shi Z, Wang J S, Zhang Y, Wang J L, Wei Z Y, Chang G Q 2023 JOSA B 40 2429Google Scholar

    [11]

    Stark H, Benner M, Buldt J, Klenke A, Limpert J 2023 Opt. Lett. 48 3007Google Scholar

    [12]

    Müller M, Kienel M, Klenke A, Gottschall T, Shestaev E, Plötner M, Limpert J, Tünnermann A 2016 Opt. Lett. 41 3439Google Scholar

    [13]

    Stark H, Buldt J, Müller M, Klenke A, Limpert J 2021 Opt. Lett. 46 969Google Scholar

    [14]

    Pedersen M E, Johansen M M, Olesen A S, Michieletto M, Gaponenko M, Maack M D 2022 Opt. Lett. 47 5172Google Scholar

    [15]

    Limpert J, Roser F, Schimpf D N, Seise E, Eidam T, Hadrich S, Rothhardt J, Misas C J, Tunnermann A 2009 IEEE J. Sel. Topics Quantum Electron. 15 159Google Scholar

    [16]

    Schimpf D N, Eidam T, Seise E, Hädrich S, Limpert J, Tünnermann A 2009 Opt. Express 17 18774Google Scholar

    [17]

    Zhang Y, Chen R Z, Huang H D, Liu Y Z, Teng H, Fang S B, Liu W, Kaertner F, Wang J L, Chang G Q, Wei Z Y 2020 OSA Continuum 3 1988Google Scholar

    [18]

    Zhang Y, Wang J S, Teng H, Fang S B, Wang J L, Chang G Q, Wei Z Y 2021 Opt. Lett. 46 3115Google Scholar

    [19]

    Wang T, Li C, Ren B, Guo K, Wu J, Leng J, Zhou P 2023 High Power Laser Sci. Eng. 11 e25Google Scholar

    [20]

    Müller M, Aleshire C, Klenke A, Haddad E, Légaré F, Tünnermann A, Limpert J 2020 Opt. Lett. 45 3083Google Scholar

    [21]

    Müller M, Buldt J, Stark H, Grebing C, Limpert J 2021 Opt. Lett. 46 2678Google Scholar

  • 图 1  基于棒状光纤的CPA系统示意图(HR, 高反镜; ISO, 光隔离器; QWP, 1/4波片; L, 透镜; Rod-type fiber, 棒状光子晶体光纤; DM, 双色镜; LD system, 泵浦; TG, 透射光栅)

    Fig. 1.  Schematic setup of the CPA system using the rod-type fiber (HR, high-reflection mirror; ISO, isolator; QWP, quarter-wave plate; L, lens; Rod-type fiber, rod photonic crystal fiber; DM, dichroic mirror; LD system, pump; TG, transmission grating).

    图 2  不同前端功率输出曲线

    Fig. 2.  Relationship between output power and pump power.

    图 3  前端功率20 W时的P偏振光功率曲线和偏振消光比

    Fig. 3.  P-polarized light power and polarization extinction ratio at 20 W front end power.

    图 4  不同前端功率放大至160 W时脉冲压缩结果

    Fig. 4.  Pulse compression results at different front-end power amplifications up to 160 W.

    图 5  不同前端功率下脉冲压缩结果

    Fig. 5.  Pulse compression results under different frontend power.

    图 6  20 W前端放大到300 W时光谱及对应变换极限脉冲, 插图为光谱, 黑色虚线为变换极限脉冲自相关曲线, 红色实线为实测自相关轨迹

    Fig. 6.  20 W front end amplification to 300 W spectrum and transform limit pulse, illustration (spectrum), measured autocorrelation (red) and transform-limited autocorrelation (black dashed) trace.

    图 7  M2测量结果, 插图为压缩后光斑

    Fig. 7.  Beam quality factor (M2) of the compressed output beam, illustration (compressed beam).

  • [1]

    Jackson S D 2012 Nat. Photonics 6 423Google Scholar

    [2]

    Chang G, Wei Z 2020 iScience 23 101101Google Scholar

    [3]

    Strickland D, Mourou G 1985 Opt. Commun. 55 447Google Scholar

    [4]

    Richardson D J, Nilsson J, Clarkson W A 2010 JOSA B 27 B63Google Scholar

    [5]

    Zervas M N 2014 Int. J. Mod. Phys. B 28 1442009Google Scholar

    [6]

    Limpert J, Stutzki F, Jansen F, Otto H J, Eidam T, Jauregui C, Tünnermann A 2012 Light: Sci. Appl. 1 e8Google Scholar

    [7]

    Stutzki F, Jansen F, Otto H J, Jauregui C, Limpert J, Tünnermann A 2014 Optica 1 233Google Scholar

    [8]

    Eidam T, Rothhardt J, Stutzki F, Jansen F, Hädrich S, Carstens H, Jauregui C, Limpert J, Tünnermann A 2011 Opt. Express 19 255Google Scholar

    [9]

    Stutzki F, Jansen F, Liem A, Jauregui C, Limpert J, Tünnermann A 2012 Opt. Lett. 37 1073Google Scholar

    [10]

    Shi Z, Wang J S, Zhang Y, Wang J L, Wei Z Y, Chang G Q 2023 JOSA B 40 2429Google Scholar

    [11]

    Stark H, Benner M, Buldt J, Klenke A, Limpert J 2023 Opt. Lett. 48 3007Google Scholar

    [12]

    Müller M, Kienel M, Klenke A, Gottschall T, Shestaev E, Plötner M, Limpert J, Tünnermann A 2016 Opt. Lett. 41 3439Google Scholar

    [13]

    Stark H, Buldt J, Müller M, Klenke A, Limpert J 2021 Opt. Lett. 46 969Google Scholar

    [14]

    Pedersen M E, Johansen M M, Olesen A S, Michieletto M, Gaponenko M, Maack M D 2022 Opt. Lett. 47 5172Google Scholar

    [15]

    Limpert J, Roser F, Schimpf D N, Seise E, Eidam T, Hadrich S, Rothhardt J, Misas C J, Tunnermann A 2009 IEEE J. Sel. Topics Quantum Electron. 15 159Google Scholar

    [16]

    Schimpf D N, Eidam T, Seise E, Hädrich S, Limpert J, Tünnermann A 2009 Opt. Express 17 18774Google Scholar

    [17]

    Zhang Y, Chen R Z, Huang H D, Liu Y Z, Teng H, Fang S B, Liu W, Kaertner F, Wang J L, Chang G Q, Wei Z Y 2020 OSA Continuum 3 1988Google Scholar

    [18]

    Zhang Y, Wang J S, Teng H, Fang S B, Wang J L, Chang G Q, Wei Z Y 2021 Opt. Lett. 46 3115Google Scholar

    [19]

    Wang T, Li C, Ren B, Guo K, Wu J, Leng J, Zhou P 2023 High Power Laser Sci. Eng. 11 e25Google Scholar

    [20]

    Müller M, Aleshire C, Klenke A, Haddad E, Légaré F, Tünnermann A, Limpert J 2020 Opt. Lett. 45 3083Google Scholar

    [21]

    Müller M, Buldt J, Stark H, Grebing C, Limpert J 2021 Opt. Lett. 46 2678Google Scholar

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  • 收稿日期:  2024-02-28
  • 修回日期:  2024-05-20
  • 上网日期:  2024-05-24
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